package com.hxz.dao;

import com.hxz.pojo.User;
import org.apache.ibatis.annotations.*;

import java.util.List;

public interface UserMapper {
    @Select("select * from user")
    List<User> getUsers();

    //方法存在多个参数，所有参数必须加上@Param注解
    @Select("select * from user where id = #{id}")
    User getUserById(@Param("id") int id);

    @Insert("insert into mybatis.user(id, name, pwd) values(#{id},#{name},#{pwd})")
    int addUser(User user);

    @Update("update mybatis.user set name = #{name}, pwd = #{pwd} where id = #{id}")
    int updateUser(User user);

    @Delete("delete from user where id = #{id}")
    int deleteUser(@Param("id") int id);
}
